VisitCopenhagen on Twitter: "Dreaming of staying in a unique, sustainable place while in Copenhagen?🛎🛏 We met up with Barbara who recently opened up the floating top-notch one-room @kajhotel, that’s she and her husband mainly built from recycled and surplus materials🛠💚 Seems like it's well worth a visit.… https://t.co/df6uBJ0XT5"